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151 A P P E N D I X A Pedigree Matrix Indicator Score Criteria 1 2 3 4 5 Impact on Final Result Parameter contribution is unknown Parameter is not likely to affect final results significantly Parameter is within the top 10 contributors to final result Parameter is within the top 5 contributors to final result Parameter is the top contributor to final result Acquisition Method Measured data Calculated data based on measurements Calculated data partly based on assumptions Qualified estimate (by industrial expert) Nonqualified estimate Independence of Data Supplier Verified data, information from public or other independent source Verified information from enterprise with interest in the study Independent source, but based on nonverified information from industry Nonverified information from industry Nonverified information from the enterprise interested in the study Representativeness Representative data from sufficient sample of sites over an adequate period to even out normal fluctuations Representative data from smaller number of sites but for adequate periods Representative data from adequate number of sites, but for shorter periods Data from adequate number of sites, but for shorter periods Representativeness unknown or incomplete data from smaller number of sites and/or for shorter periods Temporal Correlation Less than three years of difference to year of study Less than five years of difference Less than 10 years of difference Less than 20 years of difference Age unknown or more than 20 years of difference Geographical Correlation Data from area under study Average data from larger area in which the area of study is included Data from area with similar production conditions Data from area with slightly similar production conditions Data from unknown area or area with very different production conditions Technological Correlation Data from enterprises, processes, and materials under study Data from processes and materials under study, but from different enterprises Data from processes and materials under study, but from different technology Data on related processes or materials, but same technology Data on related processes or materials, but different technology Range of Variation Estimate is a fixed and deterministic number Estimate is likely to vary within a 10% range Estimate is likely to vary within a 50% range Estimate is likely to vary more than 50% Estimate is likely to vary within unknown range or vary significantly among methods
